LevelDB is widely noted for being unreliable and databases it manages
are prone to corruption.[13][14][15][16][17][18][19][20] Academic
studies of past versions of LevelDB[21][22] have found that, under
some file systems, the data stored in those versions of LevelDB might
become inconsistent after a system crash or power failure. LevelDB
corruption is so commonplace that corruption detection has to be built
in to applications that use it.[23]